87.8%
Audi RS4
Audi RS4 MOT pass rate and common problems
The Audi RS4 passed 87.8% of its initial MOT tests in 2025, 15.5 percentage points above the 72.3% UK average. The item testers recorded most often was condition has ply or cords exposed.
Checking a specific car? Its own results, advisories and recorded mileages are in a free MOT history check.
How the RS4 compares
Initial MOT tests in 2025, retests excluded. A car that failed and was repaired at the test station counts as a fail.
78.5%
Audi average
72.3%
UK average, all cars
The RS4 runs 9.3 points ahead of the Audi average. It is 8th of the 24 Audi models in the data. The average RS4 arrived at its test 11.5 years old with 67,164 miles recorded.
A pass rate records whether cars met the roadworthiness standard on test day. It is not a reliability score, and part of any gap reflects how old the tested cars were.
RS4 MOT pass rate by age
The same 2025 tests split by the car's age at test.
Audi RS4 cars aged 3 to 5 years passed 90.5% of MOT tests. For cars aged 11 years and over that fell to 85.3%, a drop of 5.2 percentage points.
| Age at test | Tests | Pass rate | vs UK average |
|---|---|---|---|
| 3 to 5 years | 790 | 90.5% | 18.2 pts above |
| 6 to 10 years | 139 | 87.8% | 15.5 pts above |
| 11 years and over | 1,220 | 85.3% | 13 pts above |
That is a smaller decline than most cars show. The UK average of 72.3% covers cars of every age, so compare like with like.
Where RS4 failures cluster
Every failure item recorded on Audi RS4 cars in 2025, grouped into the DVSA's test areas.
Tyres and lamps, reflectors and electrical equipment together account for 40.6% of recorded failure items. These are recorded failures across the model, not faults every car has.
The 10 most common RS4 MOT failures
Specific items recorded on Audi RS4 cars that failed their 2025 MOT, as a share of all recorded failure items.
Together these 10 items make up 42% of everything testers recorded against failed Audi RS4 cars. The rest is spread across many smaller items, and one failed test often records several at once.
What to look at on a RS4
The recorded failures above, grouped by area, biggest first.
1
Tyres
Recorded most often: condition has ply or cords exposed, condition has a cut in excess of the requirements deep enough to reach the ply or cords, tread depth below requirements of 1.6mm and condition has a bulge, caused by separation or partial failure of its structure. 19.1% of failure items.
2
Noise, emissions and leaks
Recorded most often: catalyst emissions lambda reading after 2nd fast idle outside specified limits and malfunction indicator lamp inoperative or indicates a malfunction. 6.8% of failure items.
3
Suspension
Recorded most often: ball joint dust cover no longer prevents the ingress of dirt. 5.4% of failure items.
4
Body, chassis, structure
Recorded most often: joints constant velocity boot split or insecure, no longer prevents the ingress of dirt. 4.6% of failure items.
The car's own MOT history matters more than any model average. A free MOT history check shows whether a specific RS4 has failed on these items before, or had them noted as advisories. Buying one? See the used Audi RS4 buying guide.
Already found one?
Check its finance, write-off, theft, mileage and keeper history with a £15 vehicle history report.
Audi RS4 MOT FAQs
What is the Audi RS4 MOT pass rate?
87.8% of Audi RS4 cars passed their initial MOT first time in 2025, from 2,310 tests. That is 15.5 percentage points above the 72.3% average for all cars, and ranks 74th of 575 models.
What does an Audi RS4 most commonly fail its MOT on?
The item testers recorded most often on Audi RS4 cars failing their 2025 MOT was condition has ply or cords exposed, on 6.1% of failure items. Next were condition has a cut in excess of the requirements deep enough to reach the ply or cords (5.8%) and ball joint dust cover no longer prevents the ingress of dirt (5.4%).
Which area causes the most Audi RS4 MOT failures?
Across every recorded failure item, the largest area was tyres at 23.1%, followed by lamps, reflectors and electrical equipment at 17.5%.
Do older Audi RS4 cars fail their MOT more often?
Audi RS4 cars aged 3 to 5 years passed 90.5% of MOT tests in 2025, against 85.3% for cars aged 11 years and over.
Does this mean every Audi RS4 has these problems?
No. These are the items testers recorded across every Audi RS4 that failed in 2025. They show where the model most often needs attention, not the condition of any individual car.
How do I see a specific Audi RS4's MOT history?
Enter its registration on the free Carpeep MOT history check to see that car's own test results, failures, advisories and recorded mileages.
MOT figures are aggregated from the DVSA MOT Anonymised data set for 2025: class 4 initial tests, retests excluded, with failure items from failed tests (advisories and minor defects excluded), licensed under the Open Government Licence v3.0. MOT results describe roadworthiness at test, not mechanical reliability.